Q:Younger brother is to do casting valve, precision casting parts, the valve internal sand serious, but the appearance is very standard, this is why, for God answers, thank you!

If is casting, internal shell mold may be not completely dry, strength is not enough, resulting in shell mold collapse into molten steel.It is also possible that the refractory is not refractory enough.

Q:ZGMn13 casting parts processing, with what knife head good?

The ZGMn13 itself is not have processing, if only the processing point, sharpening, ordinary can, if the processing area is relatively large, ZGMn13 external impact load is bigger, its surface wear resistance is high; the two is with the gradual wear of surface hardening, the hardening layer is continuously formed new if you have suggestions, processing, plasma cutting or flame cutting try

Q:How is the silicon sol precision casting part priced? What is the price per ton of casting? Such as 304 material.

The material is usually steel material price plus the cost (per ton of 2.5-3 million, plus profit).In the Yangtze River Delta region, generally 304 casting price of about 5-5.5 million / ton.The price will be higher if the parts are complex, or a piece weighs less than 100 grams.

Q:What is the ejection angle of the die casting (Tan Gang)?

Because after the wax, wax parts will have a slight contraction, which is good for demoulding. Many moulds don't do the ejection angle

Q:What's the density of casting?

Uneven casting density is caused by uneven shrinkage of the casting during solidification.

Q:How do casting parts remove stress?

Annealing treatment, according to different casting annealing treatment, eliminate thermal stress, if need to restore hardness or increase hardness, and then quenching treatment

Q:Why does the precision casting factory not usually make iron castings?

Because it is too cheap, the design of materials is cast iron, generally do not have very high requirements.

Q:How can the casting be free of trachoma?

Measures for the prevention of trachoma in castings:1, sand compaction to high, paint two times;

Q:How to calculate the price of casting parts?

According to the complexity of the workpiece, material and casting requirements and process yield

Q:What are the factors affecting the machining process of the casting material and structure?

As for the metallographic structure, usually the finished products after casting are treated by heat treatment. The mechanical properties of the carbon steel after heat treatment (quenching and tempering) are detected. The stainless steels are treated by heat treatment (solid solution, etc.) and the metallographic structure is analyzedThere is a lot of talk and a bit of confusionIf you have a specific brand, you can search for Baidu or buy tools

Grinding Prince was established in February, 2004 with an area of 24,400 square meters. Our company is an outstanding private enterprise specializing in the production of wear-resistant, corrosion-resistant, and heat-resistant alloy iron and steel castings. Currently, our production capacity of various types of wear-resistant casting balls and heat-resistant steel castings is 10,000 tons.